Sahih Bukhari, Volume 2, Book23, Number 459

Narrated Abu Huraira:
Allah’s Apostle used to invoke (Allah): “Allahumma ini a’udhu bika min ‘adhabi-l-Qabr, wa min ’adhabi-nnar, wa min fitnati-l-mahya wa-lmamat, wa min fitnati-l-masih ad-dajjal. (O Allah! I seek refuge with you from the punishment in the grave and from the punishment in the Hell fire and from the afflictions of life and death, and the afflictions of Al-Masih Ad-Dajjal.”